Mixture and Alligation

1.		A trader mixes 36 kg of grain at Rs.26 per kg with 24 kg of grain of other variety at Rs.36 per kg and sells the mixture at Rs.33 per kg. His profit percent is:

(6) 2/3%

8%

10%

No profit, no loss

2.		If 900 gm of sugar solution has 30% sugar in it, how much sugar must be added to make the concentration of sugar 40% in the solution?

150 gm

120 gm

125 gm

100 gm

3.		A grain merchant has 500 kg of rice, a part of which he sells at 8% profit and the rest at 18%. He gains 14% on the whole. The quantity sold at 18% profit is:

200 kg

300 kg

150 kg

180 kg

4.		One type of liquid contains 25% of acid, the other contains 20% of acid. A can is filled with 6 parts of the first liquid and 4 parts of the second liquid. Find the percentage of acid in the new mixture?

23%

25%

27%

29%

5.		From a container of wine, 15 litres of wine is taken and replaced with same quantity of water. This process is repeated two more time and the ratio of wine and water became 343:169. The initial amount of wine in the container was?

125 litres

100 litres

150 litres

120 litres

6.		There are two vessels. In the first vessel, the ratio of copper and aluminium is 1 : 2 and in the 2nd vessel, 1 : 4. In what ratio these two vessel should be mixed to make 3rd vessel in which the ratio of copper and aluminium become 1 : 3?

5:3

3:5

2:5

5:2

7.		150 gm of sugar solution has 30% sugar in it. Then the quantity of sugar that should be added to the solution to make the quantity of the sugar 70% in the solution, is?

250 gms

240 gms

200 gms

300 gms

8.		A person mixes item A costing Rs. 30/kg with item B costing Rs. 5/kg, and produces a mixture which costs Rs. 12/kg. The ratio in which the person mixes items B and A is:

7 : 18

5 : 13

12 : 13

18 : 7

9.		A 60 litres vessel full of orange juice contains 40% orange pulp. A part of juice is replaced by another juice containing 19% orange pulp and now the percentage of orange pulp is found to be 26%. What quantity of juice is replaced?

26 litres

40 litres

36 litres

24 litres

10.		A shopkeeper sells milk which contains 5% water. What quantity of pure milk should be added to 10 liters of milk (containing 5% water) so that proportion of water becomes 4%?

1.5 L

1.8 L

2 L

2.5 L